Response of strings to turbulence-Redux (L)

摘要

An unresolved issue in the author's Ph.D. thesis concerned the relation between turbulent flow speed and the maximum response of a string excited by the turbulence. The maximum response occurred at a flow speed significantly less than that predicted. This discrepancy was not resolved at the time, but can be resolved if one notes that the flow excitation is dispersive, with longer scale disturbances that flow faster than smaller scale disturbances. It is suggested that string response to turbulence may be a useful way to determine small-scale properties of a turbulent flow.